Dump-car-locking device



Jan. 16, 1923. 1,442,151. 1. H. HOWARD. 1

' DUMP CAR 100111110 DEVICE.

FILED MAR.19.1921.

2 SHEETSSHE ET I.

Jan. 16, 1923. 1,442,151. 1. H. HOWARD.

DUMP CAR LOCKING DEVICE.

FILED MAR. 19. |921-. 2 SHEETS-SHEET 2.

. 1" 1 FE; 'i 5 9.5 I i ,1 1 22 2 WIHW'IIJJI!IF'I II WW hIH HHHIIWH|HI Z IWEMM HHIHM11111111111111WWW 2 94 44 I Z4 -,2? 24" v 25 I x 25 J Swuemtoz Patented Jan. 16, 1923.

UNITED STATES PATENT OFF-ICE.

JOHN H. HOWARD, OF BUFFALO, NEW YORK, ASSIGNOR TO M. H. TREAIJWELL COM- PANY, A CORPORATION OF NEW YORK. r

DUMr-oAR-Looxmcr nnvrcn.

Application filed March 19, 1921. Serial No. 453,611.

To all whom it may concern Be it known that I, JOHN H. HOWARD, a citizen of the United States, and resident of Buffalo, in the county of Erie and State of New York, have invented certain new,

and useful Improvements in Dump-Car- Locking Devices, of which the following is a specification.

This invention relates to dump car looking devices, and more particularly to a device for automatically locking the car in upright position after it has been returned thereto from dumping. Unless locking means are provided for such cars, accidental overturning is of frequent occurrence. I have devised a means for overcoming this difliculty which is simple in design and economical to manufacture and of small number of parts. A form of apparatus embodying my invention is described in the accompanying specification and illustrated in the accompanyingdrawings, wherein Fi ire 1 is a side elevation of a car with the evice attached,

I i re 2 is a side elevation of the lockin evice in detail,

%igure 3 is an end elevation of the parts shown in Figure 2, and

Figure 4 is a plan view of the parts shown in Figures 2 and 3.

In Figure 1 is shown a car of the type more fully disclosed in the patent to Astrom #889,866, dated June 2, 1908, of which 1 represents an underframe mounted on p trucks 2 and provided with the usual coupling equipment used on cars of this type. Platforms 3 are mounted upon the ends of frame 1 over trucks 2 and carry transversly disposed tracks 4 upon which roll trunnions 5. Trunnions 5 are mounted upon the ends of yoke 6 in which is carried the ladle body 7, the latter being capable of being poured on either side of the car. Ad-M jacent track 4 isa rack 8 and adjacent trunnion 5 is a gear 9, the latter meshing with rack 8 and causing trunnion 5 to roll upon track 4 to tilt the ladle body 7 when pouring. Gear 9 is actuated by a motor comprising reciprocating cylinder 10 having a guide lug 12 integral therewith engaging a transverse guide bar 11, the reciprocation of the cylinder 10 actuating gear 9 through a mechanism more fully disclosed in the aforesaid patent. Actuating mechanism and guide bar 11 are carried in supports 13 at either side of the platformand are connected at the top by cross bracing 14.

Trunnion 5 has a recess 15 which is engaged by latch 16 which is ivoted at 17 to support 18 fixed to plat orm 3. The outer end of latch 16 engages the recess 15 when trunnion 5 and ladle body 7 are in upright position, but when the ladle body is tilted the outer end of latch 16 will rest upon the periphery of trunnion 5. A chain 19 raises latch 16 to disengage it, chain 19 belng attached to a rocker arm 20 which is rocked by shaft 21 carried in supports 24 which are secured to cross bracing 14. Rock shaft 21 extends transversely the Width of the platform and at either end outside of supports 24 has fixed thereto a rocker arm 22 at the end of which is operating handle "23. V

In the preferred form of the invention trunnion member5 is squared ofi" as at 25 and a segment shaped member 26 is bolted thereto, recess 15 beingin segment shaped member 26' and not in the body of the trunnion- 5. This construction is resorted to for purposes of convenience and economy of manufacture and in no way involves the principle of the invention, and recess 15 may if desired be made directly in the body of the trunnion 5. Segment shaped member 26 is here and in the following claimsre garded as a part oftrunnion 5.

What I claim is:

1. In combination with a car body mounted on trunnions, a motor for tilting said car body through one of said'trunnions, and

means engaging one of said trunnions for locking said car body in an upright position.

2. A locking device for a trunnion, comprising a latch, means on the trunnion for engaging said latch to interlock therewith when the trunnion is moved into a predetermined position, and means for supporting the latch when disengaged from said interlocking means in position to engage automatically therewith on the aforesaid movement of the trunnion.

3. A locking device for a trunnion comprising recessed means carried by the trunnion, a fixed support,-a latch secured to said support and automatically engageable with said recess on movement of the trunnion to a predetermined position, and means for disengaging said latch.

4. In combination with a car body mounted on trunnions, means for tilting said car body, and means engaging one of said trunnions for locking said car body in upright position. I 1

5. In combination with a car body mounted on trunnions, means for tilting said car body, means automatically engaging one of said. trunnions on movement of the latter to lock the same in predeterminedposition, and manually operable means for unlocking said trunnion.

6. In combination with a car body mounted on trunnions, means for tilting said car body, and gravity actuated means for locking said car body in upright position.

7. A dump car, comprising a car body mounted on trunnions, wheeled supporting means for said trunnions, car body tilting means carried on said supporting means, recessed means carried on one of the trunnion's, and a latch carried on said supporting means engageable with said recessed means.

I 8. In combination with a tilting and laterally movable car body mounted on trunnions, of means for tilting said car body to either'side, and means automatically engaging one of said trunnions to lock the. same as the car body is moved into upright from either of its dumping positions.

v 9. In combination with a tilting and laterally movable car body mounted on trunnions, of means for tilting said car body to either side, a latch, one of said trunnions being recessed to interlock with said latch, and means for supporting said latch in position to engage said trunnion automatically on movement of the car body to upright from either of its tilted positions.

10. The combination with a dump car body, of a pivotal support therefor, a car platform on which the support is mounted, a member secured to said'support, a fixed support on the car platform, a latch incooperation with the fixed support and member, a pin and recess connection between said member and latch for locking the car body in an upright position.

11. The combination with a dump car body, of a pivotal support therefor, a car platform on which the support is mounted, a locking member secured to said support, a fixed support on the car platform, a latch in cooperation withtli'e fixed support and locking member, a pin and recess connection between the latch and locking member for retaining the car bodyin an upright position, the latch being held in cooperation with the locking member by gravity.

12. The combination with a dump car body, of a pivotal support therefor, a car platform'on which the support is mounted, a fixed support extending above the car platform, a latch pivotally secured thereto, a member carried by the car body su pport, a pin and recess connectionwith the latch on the upper edge portion of said member for locking the car body in a substantially upright position, and a hoisting mechanism for raising the latch from'coop eration with said member.

stantially vertically movable hoistingmechanism for unlocking said car body,

Signed at Buffalo in the county of Erie and State of New York this 12 "day of'Mairch, A. D. 1921.

Jot-1n HOWARD. 

